BIG boosted 5.3s: come In and list ur setup!
06-01-2012, 03:01 PM
#61
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Like said before, the small bore is where it's at when head sealing is an issue. Not to mention the iron is better over aluminum, ect. I just think most people think they need 427ci+ to make huge power. Last I recall the supras ad lambos that are the big killers aernt 427+ci........
On a side note, anyone ever thought of doing like a dry deck setup to an iron block and having external passages(3/4" lines maybe) to flow coolant thru the heads?? That setup with custom gaskets would be the cats ***
On a side note, anyone ever thought of doing like a dry deck setup to an iron block and having external passages(3/4" lines maybe) to flow coolant thru the heads?? That setup with custom gaskets would be the cats ***
Keep the 5.3 and don't let these guys tell you different.
The problem with the LS motor's is they have limited real estate when it comes to the deck. The way the cylinder sleeves and water jackets are set-up there is little actual deck material for the head to seal too. That is why big boost motors dry deck the heads so that there is much more material for the head and deck to seal together with. Same thing with thicker beefier heads. More material, less chance of moving around.
As someone else said SBF and GN guy's have been dealing with this for years and the answer is more deck material, more head material, copper gaskets, and smaller bores. A smaller bore like a 5.3 will have more meat around the cylinder for the head to seal too. SBC guys have an extra bolt at 5 bolts, but the principal is the same.
Big blocks have 4 also and they have the least of all the engine combo's problems with this, because they have a ton more material head wise and deck wise to seal to the block.
Yes 6 bolts help but the analogy I used the other day to someone was you can put stone turrents on a wooden fort(lsx with 6 bolts) but it's still not King Arthurs Castle(big block).
Nothing wrong with an LSX at all I love them, it's what I run just saying that this will work if the fuel, tune, compression and quench is correct.
I would use an as cast 225 trick flow head and a cam tailored to your set-up and turbo will not be laggy at all especially if you use certain tricks in the stock pcm to spool the turbo.
I can't wait to see this thing go
The problem with the LS motor's is they have limited real estate when it comes to the deck. The way the cylinder sleeves and water jackets are set-up there is little actual deck material for the head to seal too. That is why big boost motors dry deck the heads so that there is much more material for the head and deck to seal together with. Same thing with thicker beefier heads. More material, less chance of moving around.
As someone else said SBF and GN guy's have been dealing with this for years and the answer is more deck material, more head material, copper gaskets, and smaller bores. A smaller bore like a 5.3 will have more meat around the cylinder for the head to seal too. SBC guys have an extra bolt at 5 bolts, but the principal is the same.
Big blocks have 4 also and they have the least of all the engine combo's problems with this, because they have a ton more material head wise and deck wise to seal to the block.
Yes 6 bolts help but the analogy I used the other day to someone was you can put stone turrents on a wooden fort(lsx with 6 bolts) but it's still not King Arthurs Castle(big block).
Nothing wrong with an LSX at all I love them, it's what I run just saying that this will work if the fuel, tune, compression and quench is correct.
I would use an as cast 225 trick flow head and a cam tailored to your set-up and turbo will not be laggy at all especially if you use certain tricks in the stock pcm to spool the turbo.
I can't wait to see this thing go
06-01-2012, 04:36 PM
#62
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Hopefully find a donor fox body car soon so I can respond. Planning on a 4.8 (already have), small cam, head gaskets, ebay studs, twin on3 76mm or a single BW S475 (already have), with a turbo 400. Who cares if its a little slow off the get go,that just keeps me from spinning so hard, the 4.8 with a cam should push the car as well as the stock 5.0 did that people think were quick, then hopefully spool at 4Kish so i can keep it lit between shifts.
06-01-2012, 09:24 PM
#63
Like said before, the small bore is where it's at when head sealing is an issue. Not to mention the iron is better over aluminum, ect. I just think most people think they need 427ci+ to make huge power. Last I recall the supras ad lambos that are the big killers aernt 427+ci........
On a side note, anyone ever thought of doing like a dry deck setup to an iron block and having external passages(3/4" lines maybe) to flow coolant thru the heads?? That setup with custom gaskets would be the cats ***
On a side note, anyone ever thought of doing like a dry deck setup to an iron block and having external passages(3/4" lines maybe) to flow coolant thru the heads?? That setup with custom gaskets would be the cats ***
06-05-2012, 07:38 AM
#65
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While this isnt a 5.3, it IS a 4.8 which is the same bore, but less stroke.
http://www.performancetrucks.net/for...-going-485734/
1202hp anyone?
Oh and that forum has a few boosted 4.8 and 5.3 guys.
http://www.performancetrucks.net/for...-going-485734/
1202hp anyone?
Oh and that forum has a few boosted 4.8 and 5.3 guys.
Last edited by Bumpin' Yota; 06-05-2012 at 07:43 AM.
02-01-2016, 02:00 AM
#66
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I like how no one listed any 5.3 setups.... I have a 00 turbo t/a with stock block, 243's, arp head studs, and Mls head gaskets. I'm scared to turn it up with this aluminum block. I just picked up a 5.3 with 44k miles and I would really like to know more about other people's setups.... I am gonna port the stock 706 heads, get arp's, Mls head gaskets, ls7 lifters, plus I already have comp roller rockers, and ls6 intake. Not sure what else to do. I wanna run 18-22psi and make big power... I also have the 9'' rear with 3.73's to back it up!
Last edited by 00TurboBlackbird; 02-02-2016 at 01:31 AM. Reason: Stock aluminum block is 5.7
02-01-2016, 07:05 AM
#68
I like how no one listed any 5.3 setups.... I have a 00 turbo t/a with stock block, 243's, arp head studs, and Mls head gaskets. I'm scared to turn it up with this aluminum block. I just picked up a 5.3 with 44k miles and I would really like to know more about other people's setups.... I am gonna port the stock 706 heads, get arp's, Mls head gaskets, ls7 lifters, plus I already have comp roller rockers, and ls6 intake. Not sure what else to do. I wanna run 18-22psi and make big power... I also have the 9'' rear with 3.73's to back it up!
02-01-2016, 12:23 PM
#69
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The 5.3 that I just picked up is iron. I'm scared to turn it up on my stock 5.7 ls1 that has 100k miles. I'm just wondering what else I should do for the 5.3 before I drop it in this summer
02-01-2016, 12:44 PM
#70
Not really BIG boosted compared to some on here but here's my rather mundane turbo 5.3 setup:
LM7 5.3 - SBE, 862's, stock intake and exhaust manifolds.
LS9 HG, BTR dual valve springs and pushrods, ARP head bolts
FTI TH400 and converter w/DSS driveshaft
On3 88/83mm
TIAL BOV and wastegate
Holley EFI, injectors and rails
Aeromotive pump and regulator on E85, -10 feed, mix of -6 and -8 return
Treadstone IC
3" coldside piping, 2" crossover piping, T4 flange, 4" exhaust
Ran 9.6@145 on 21-22lbs and its seen 26lbs in testing since on the stock engine with fairly low timing ~13 degrees. I don't really want to lean on the SBE any harder as she has to push a 4k lb car down the track!
I have another 5.3 in the works with forged pistons .020 over, forged rods, head studs, some better heads and better flowing intake manifold, etc... Hopefully I can get everything this 88 has left in it.
LM7 5.3 - SBE, 862's, stock intake and exhaust manifolds.
LS9 HG, BTR dual valve springs and pushrods, ARP head bolts
FTI TH400 and converter w/DSS driveshaft
On3 88/83mm
TIAL BOV and wastegate
Holley EFI, injectors and rails
Aeromotive pump and regulator on E85, -10 feed, mix of -6 and -8 return
Treadstone IC
3" coldside piping, 2" crossover piping, T4 flange, 4" exhaust
Ran 9.6@145 on 21-22lbs and its seen 26lbs in testing since on the stock engine with fairly low timing ~13 degrees. I don't really want to lean on the SBE any harder as she has to push a 4k lb car down the track!
I have another 5.3 in the works with forged pistons .020 over, forged rods, head studs, some better heads and better flowing intake manifold, etc... Hopefully I can get everything this 88 has left in it.
02-01-2016, 07:13 PM
#72
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nice times! it is amazing when you see the "little guys" wring the neck of a Honda or supra motor and pump it hard
remember, the old f1 cars pumped 1100+ hp out of 110 ci but it's hard to get it to live
I'd like to try an alum block l33 or something with a forged rod and crank and maybe mod to 1/2 studs with AFR 225 heads.
hoping I can stay with the stock 58 mm turbos on the ttix and crank out a good 900 at the tire through an automatic
I think I can do it on E85 and hopefully get it all to live
if not I've got an iron block, tough choice!!! but both alternatives look like hopefully they can hold up. I think the turbo cars are a bit easier on the parts.
remember, the old f1 cars pumped 1100+ hp out of 110 ci but it's hard to get it to live
I'd like to try an alum block l33 or something with a forged rod and crank and maybe mod to 1/2 studs with AFR 225 heads.
hoping I can stay with the stock 58 mm turbos on the ttix and crank out a good 900 at the tire through an automatic
I think I can do it on E85 and hopefully get it all to live
if not I've got an iron block, tough choice!!! but both alternatives look like hopefully they can hold up. I think the turbo cars are a bit easier on the parts.
02-01-2016, 07:44 PM
#73
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Just finished my motor, l33 block,callies crank, h-beam rods, diamond pistons, dart pro 1 as cast heads, studded mains, arp rod bolts,Arp head studs. I'm just gonna say I did not build this motor this way so that I can make 5 or 600 hp. I'll post my results soon as I have some dyno time
02-02-2016, 12:35 AM
#74
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I like how no one listed any 5.3 setups.... I have a 00 turbo t/a with stock block, 243's, arp head studs, and Mls head gaskets. I'm scared to turn it up with this aluminum block. I just picked up a 5.3 with 44k miles and I would really like to know more about other people's setups.... I am gonna port the stock 706 heads, get arp's, Mls head gaskets, ls7 lifters, plus I already have comp roller rockers, and ls6 intake. Not sure what else to do. I wanna run 18-22psi and make big power... I also have the 9'' rear with 3.73's to back it up!
https://ls1tech.com/forums/forced-in...1-25-60-a.html
02-02-2016, 06:00 PM
#77
My last 5.3 saw 26psi for a while
Stock bottom end gen 4 with 4.8 flat tops
243s, arp studs, e85, twin gt35s.
My cobra has gone 9.0 at 151 on only 15psi
It has a junkyard gen 4 5.3, 799s, e85, precision 7675,
Had the tune tweaked a bit and its currently at 25ish
Hoping to go pretty deep into the 8s this year.
A friend of mine has an l33 with an s484 on 33psi. Stock engine other than the camshaft and studs . Its gone 5.20s at mid 130s on pump 91 and meth
Stock bottom end gen 4 with 4.8 flat tops
243s, arp studs, e85, twin gt35s.
My cobra has gone 9.0 at 151 on only 15psi
It has a junkyard gen 4 5.3, 799s, e85, precision 7675,
Had the tune tweaked a bit and its currently at 25ish
Hoping to go pretty deep into the 8s this year.
A friend of mine has an l33 with an s484 on 33psi. Stock engine other than the camshaft and studs . Its gone 5.20s at mid 130s on pump 91 and meth
